George f



(No Model.)-

G. F. HAWKES. Stylographio Pen.

Patented Nov. 9, 1880.

ATTORNEY PETERS. PHOTO-l WuoGRAPHl-fi. WASHINGTON. D c

UNITED STATES PATENT OFFICE.

GEORGE F. HAWKES, OF NEW YORK, N. Y.

STYLOGRAPHIC PEN.

SPECIFICATION forming part of Letters Patent No. 234,182, dated November 9, 1880.

Application filed September 4, 1880. (No model.)

.To all whom it may concern Be it known that I, GEORGE F. HAWKES, of the city, county, and State of New York, haveinvented certain new and useful Improvelnentsin Stylographic Fountain-Pens, of which the following is a specification.

This invention has reference to improvements in that class of stylographic fountain-pens in which a screw-coupling connects the handlereservoir and point-section, the improvements being designed with a view to a greater simplicity and durability of the construction, and in such a manner that all the parts composing the pen may be easily taken apart and cleaned, so as to be better adapted for general use.

The invention consists of a stylographic fountain-pen in which the air-tube is secured into and supported by the coupling which connects the handle-reservoir and point-section. The air-tube is provided with a collar or shoulder at its upper end, so as to be closed tightly by the top cap. The air-tube is further provided at its point of connection with the coupling with ink-conducting channels, through which and openings of the coupling the ink passes to the needle and point-section. The coupling is provided with an extension tube or socket, which is closed by a perforated plug, which guides the vibrating needle. The needle has a shoulder back of the plug, andis acted upon byacushioning-sprin g which is inclosed in the socket. The point of the point-section is drilled out of a solid piece of metal composed of iridium and platina.

In the accompanying drawings, which illustrate myinvention, Figure 1 represents a vertical central section of my improved stylographic fountain-pen. Fig. 2 is a detail side View of the air-tube and coupling detached from each other; and Figs. 3,4, and 5 are horizontal sections of the pen respectively on lines w x, y y,

and z 2, Fig. 1.

Similar letters of reference indicate corresponding parts.

A in the drawings represents the hollow handle or reservoir of my improved fountain-pen, and B the screw-coupling which forms the connection between the handle A and point-section 0. The handle A and point-section O are screwed to opposite ends of the coupling B, so as to be readily removed for cleaning.

The screw-coupling B is either made in one piece with the air-tube D, which extends longitudinally through the reservoir A, or the airtube may be plugged or otherwise secured into the coupling B, as preferred.

The ink is conducted from the reservoir A, through small channels a of the lower plug or disk-shaped part of the air-tube D, to the interior of the coupling, and from the same, through outwardly extending and inclined holes I), to the needle and point-section G.

The air-tube D is provided a short distance below its upper end with a collar or shoulder, d, upon which the cap E is tightly screwed, so as to make the reservoir perfectly air-tigh t, for which purpose the inner edge of the cap is fitted by aconical seat onto a corresponding conical part above the collar or shoulder d of the air-tube, as shown in Figs. 1 and 2.

The air is admitted, through a vent-plug, E, to theinterior of the fountain-pen in the usual manner.

By connecting the air-tube with the coupling B and removing the screw-cap the reservoir A can be filled from the upper end without detaching the coupling and point-section, which is superior to the filling of the handle from the lower end.

The connecting screw-couplingB is provided at its forward end with a tubular extension or socket, c, which is closed by a plug, f. The vibrating needle 0 is guided in a central perforation of the plug f, and retained by a collar, f, near its inner end, which collar is forced against the plug f by a cushioning-spring, g, which is interposed between the collarf and the bottom of the socket e. The spring is thus entirely inclosed, and thereby prevented from coming in contact with the ink, which forms a point of advantage over other stylographic fountain-pens, in which the ink exerts a corroding and deteriorating influence upon the spring.

The spring g presses upon the collar of the needle, and closes thereby the orifice of the guide-perforation of the plug.

The socket-tube e of the coupling is made smaller than the tubular connecting portion of the point-section C, so that the ink is allowed to pass from the interior of the coupling through the connecting-holes and along the exterior of the needlecarryin g socket and plug to the tree dle and the discharge-opening of the point-section.

The air is admitted to the pointsection by unscrewing the plug at the top of the reservoir, it passing then through the air-tube to the coupling, and through the same to the needle and point-section.

The point-section (J is made tapering at its outermost end. and provided with a conical writing-point, It, which is bored out of a solid piece of metal composed of an alloy of iridium and platina, which, by practical tests, has been found to be more durable than the iridium points heretofore employed.

The facility by which this fountain-pen is filled, the easy cleaning of the same by taking it apart, and the protection given to the cusln ioning-spring secure its regular and reliable working and impart. to it a high degree of permaneney.

I am aware that the connection ot the handlecontainingtheink fountainorreservoir with the point-section by an interposed coupling has been used heretofore, and I lay. therefore, no claim to the same, broadly.

Having thus described my invention, I claim as new and desire to secure by Letters lat' ent 1. In a stylographic fountain-pen, the combination, with the screw-coupling connecting the handle and point-section,of an air-tube attached thereto and extending through the handle to the upper end of the same, and provided With ink-conducting channels within the coupling, substantially as set forth.

2. In a stylographic tountain-pen, the combination of a screw-coupling connecting the handle-reservoir and point-section with an airtube attached thereto and extending through the handle to the upper end of the same, substantially as set forth.

3. In a stylographic fountain-pen, the combination of a screw-coupling connecting the handle and point-section with an air-tube attached thereto and provided with a collar or shouldernear its upperend, to which the screwcap is tightly fitted, as and for the purpose described.

4. In a stylographic fountain-pen, the combination of a screw-coupling connecting the handle and point-section, said coupling being provided with a tubular extension or socket, with a perforated plug fitted into the socket, andwith a vibrating needle guided therein, substantially as specified.

5. In a stylographic fountain-pen, the combination of a screw-coupling connecting the handle and point-section, said coupling being provided with a tubular extension or socket, with a perforated closing-plug, and with a spring-cushioned needle having a collar back of the plug, substantially as described.

6. In a stylographic fountain-pen, the screwcoupling B, having a. tubular extension or socket, e, and radial holes at the base of the same for conducting the ink to the needle and writingpoint, substantially as set forth.

7. In a stylographic fountain-pen, the combination of handle Aand point-section U with a connecting screw-coupling, B, having an air tube, I), at one side and a socket-tube, c, and guide-plug f for the spring-cushioned needle at the other side, all substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 3d day of September. 1880.

GEORGE F. HAVVKES.

Witnesses:

PAUL GoEPEL, CARL KARI. 

